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Finding the Fourth Proportional to 127,161.52, 175,479.36 and 69,800.80

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Solution

The fourth proportional to 127,161.52, 175,479.36 and 69,800.80 is: 96,323.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,161.52 : 175,479.36 = 69,800.80 : x
  2. Step 2: Convert to fraction form
    127,161.52/175,479.36 = 69,800.80/x
  3. Step 3: Cross multiply
    127,161.52x = 175,479.36 × 69,800.80
  4. Step 4: Simplify right side
    127,161.52x = 12,248,599,711.49
  5. Step 5: Solve for x
    x = 12,248,599,711.49/127,161.52
  6. Step 6: Final answer
    x = 96,323.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.